> This way the code stays readable/debuggable by humans.

Please take the following as expressed with genuine curiosity: Do you not use an editor with syntax highlighting and collapsible comments?

At least on JetBrains you can configure the editor to collapse all comments on open and to have the comments displayed in a low-contrast color. This way, LLMs add a bunch of comments, but it doesn't affect your actual experience in trying to read the code. If you encounter code that seems inexplicable, then and only then would you expand the comment to see if that helps you understand.